A detailed acquisition,analysis,and representation of biological systems exhibiting different functions is required to develop unique bio-inspired multifunctional conceptual designs and methods.This paper presents BIK...A detailed acquisition,analysis,and representation of biological systems exhibiting different functions is required to develop unique bio-inspired multifunctional conceptual designs and methods.This paper presents BIKAS:Bio-inspired Knowledge Acquisition and Simulacrum,a knowledge database of biological systems exhibiting various functionalities,developed based on case-based bio-inspired examples from literature.The knowledge database represents the biological features,their characteristics,and the function exhibited by the biological feature as a combination of its integrated structure and structural strategy.Furthermore,this knowledge database is utilized by the Expandable Domain Integrated Design(xDID)model that works on classifying,mapping,and representing biological features into their respective geometric designations called Domains.The combination of features from the Domains results in the generation of multifunctional conceptual designs.In addition,Meta-level design factors are proposed to aid designers in filtering the biological features and their respective functions having a similar structural strategy,thus aiding designers in rapidly selecting and emulating biological functions.展开更多
The earth-abundant and high-performance catalysts are crucial for commercial implementation of hydrogen evolution reaction(HER).Herein,a multifunctional site strategy to construct excellent HER catalysts by incorporat...The earth-abundant and high-performance catalysts are crucial for commercial implementation of hydrogen evolution reaction(HER).Herein,a multifunctional site strategy to construct excellent HER catalysts by incorporating iridium(Ir)ions on the atomic scale into orthorhombic-CoSe2(Ir-CoSe_(2))was reported.Outstanding hydrogen evolution activity in alkaline media such as a low overpotential of 48.7 mV at a current density of 10 mA cm^(-2)and better performance than commercial Pt/C catalysts at high current densities were found in the Ir-CoSe_(2) samples.In the experiments and theoretical calculations,it was revealed that Ir enabled CoSe_(2)to form multifunctional sites to synergistically catalyze alkaline HER by promoting the adsorption and dissociation of H_(2)O(Ir sites)and optimizing the binding energy for H^(*)on Co sites.It was noticeable that the electrolytic system comprising the Ir-CoSe_(2)electrode not only produced hydrogen efficiently via HER,but also degraded organic pollutants(Methylene blue).The cell voltage of the dual-function electrolytic system was 1.58 V at the benchmark current density of 50 mA cm^(-2),which was significantly lower than the conventional water splitting voltage.It was indicated that this method was a novel strategy for designing advanced HER electrocatalysts by constructing multifunctional catalytic sites for hydrogen production and organic degradation.展开更多
With the rapid growth of the pet economy,dog educational toys play key roles in entertainment,cognitive development,and human-pet interaction.However,existing products often suffer from limited function,poor durabilit...With the rapid growth of the pet economy,dog educational toys play key roles in entertainment,cognitive development,and human-pet interaction.However,existing products often suffer from limited function,poor durability,and lack of user experience focus.Purpose:This study targets millennial large dog owners in Europe and the United States,proposing a systematic design approach based on user experience theory.Methods:Using questionnaires,behavioral observation,big data analysis,and user experience mapping,four key elements were identified:functionality,shape and color,size adaptability,and material durability.A multifunctional,modular design with adjustable difficulty was then proposed.Conclusion:Findings indicate that applying user experience theory can enhance product functionality and emotional value,strengthen market competitiveness,and provide guidance for innovation and user experience optimization in the pet products industry.展开更多
Highly effective catalysts for the oxygen reduction reaction(ORR)and the oxygen evolution reaction(OER)are imperative in renewable technologies.The structural design of multifunctional electrocatalysts remains a huge ...Highly effective catalysts for the oxygen reduction reaction(ORR)and the oxygen evolution reaction(OER)are imperative in renewable technologies.The structural design of multifunctional electrocatalysts remains a huge challenge.Herein,a synthesis approach for hierarchical electrocatalysts is explored for embedding Co_(2)P nanoparticles and Fe–Nx species on hollow porous carbon spheres(Co_(2)P/Fe/NP–HCSs)by the pyrolysis of polystyrene@ZnCo-ZIF(PS@ZnCo-ZIF)composite precursors with the addition of PA and ferrocene.The combination of active species and hollow carbon structures endows Co_(2)P/Fe/NP–HCS electrocatalysts with prominent catalytic abilities for the ORR/OER.Co_(2)P/Fe/NP–HCSs show a positive half-wave potential(0.872 V)for the ORR while achieving a low overpotential(341 mV@10 mA cm^(−2))for the OER.Consequently,a Co_(2)P/Fe/NP–HCS-based Zn–air battery delivers high power density and desirable durability.This study provides a distinct synthetic strategy for preparing practical catalysts for energy conversion equipment.展开更多
基金supported by the Natural Sciences and Engineering Research Council of Canada Discovery Grant RGPIN-2018-05971 and MEDA(McGill Engineering Doctoral Award).
文摘A detailed acquisition,analysis,and representation of biological systems exhibiting different functions is required to develop unique bio-inspired multifunctional conceptual designs and methods.This paper presents BIKAS:Bio-inspired Knowledge Acquisition and Simulacrum,a knowledge database of biological systems exhibiting various functionalities,developed based on case-based bio-inspired examples from literature.The knowledge database represents the biological features,their characteristics,and the function exhibited by the biological feature as a combination of its integrated structure and structural strategy.Furthermore,this knowledge database is utilized by the Expandable Domain Integrated Design(xDID)model that works on classifying,mapping,and representing biological features into their respective geometric designations called Domains.The combination of features from the Domains results in the generation of multifunctional conceptual designs.In addition,Meta-level design factors are proposed to aid designers in filtering the biological features and their respective functions having a similar structural strategy,thus aiding designers in rapidly selecting and emulating biological functions.
基金the financial support of the Doctoral Research Initiation Foundation of Linyi University(LYDX2020BS016)the National Natural Science Foundation of Shandong Province(ZR2021QB208,ZR2022MB054)+4 种基金the National Natural Science Foundation of China(22305262)SIAT Innovation Program for Excellent Young Researchers(2022)Shenzhen Science and Technology Program Grant(RCJC20200714114435061,ZDSYS20220527171406014)the City University of Hong Kong Donation Research Grants(9220061 and 9229021)City University of Hong Kong Strategic Research Grant(SRG 7005505)。
文摘The earth-abundant and high-performance catalysts are crucial for commercial implementation of hydrogen evolution reaction(HER).Herein,a multifunctional site strategy to construct excellent HER catalysts by incorporating iridium(Ir)ions on the atomic scale into orthorhombic-CoSe2(Ir-CoSe_(2))was reported.Outstanding hydrogen evolution activity in alkaline media such as a low overpotential of 48.7 mV at a current density of 10 mA cm^(-2)and better performance than commercial Pt/C catalysts at high current densities were found in the Ir-CoSe_(2) samples.In the experiments and theoretical calculations,it was revealed that Ir enabled CoSe_(2)to form multifunctional sites to synergistically catalyze alkaline HER by promoting the adsorption and dissociation of H_(2)O(Ir sites)and optimizing the binding energy for H^(*)on Co sites.It was noticeable that the electrolytic system comprising the Ir-CoSe_(2)electrode not only produced hydrogen efficiently via HER,but also degraded organic pollutants(Methylene blue).The cell voltage of the dual-function electrolytic system was 1.58 V at the benchmark current density of 50 mA cm^(-2),which was significantly lower than the conventional water splitting voltage.It was indicated that this method was a novel strategy for designing advanced HER electrocatalysts by constructing multifunctional catalytic sites for hydrogen production and organic degradation.
文摘With the rapid growth of the pet economy,dog educational toys play key roles in entertainment,cognitive development,and human-pet interaction.However,existing products often suffer from limited function,poor durability,and lack of user experience focus.Purpose:This study targets millennial large dog owners in Europe and the United States,proposing a systematic design approach based on user experience theory.Methods:Using questionnaires,behavioral observation,big data analysis,and user experience mapping,four key elements were identified:functionality,shape and color,size adaptability,and material durability.A multifunctional,modular design with adjustable difficulty was then proposed.Conclusion:Findings indicate that applying user experience theory can enhance product functionality and emotional value,strengthen market competitiveness,and provide guidance for innovation and user experience optimization in the pet products industry.
基金supported by the National Natural Science Foundation of China(No.52072139 and 21964007)the Natural Science Foundation of Hubei Province(No.2019CFB606)+1 种基金the Key Research and Development Program of Hainan Province-Social Development Direction(ZDYF2020204)the Innovation Platform for Academicians of Hainan Province.
文摘Highly effective catalysts for the oxygen reduction reaction(ORR)and the oxygen evolution reaction(OER)are imperative in renewable technologies.The structural design of multifunctional electrocatalysts remains a huge challenge.Herein,a synthesis approach for hierarchical electrocatalysts is explored for embedding Co_(2)P nanoparticles and Fe–Nx species on hollow porous carbon spheres(Co_(2)P/Fe/NP–HCSs)by the pyrolysis of polystyrene@ZnCo-ZIF(PS@ZnCo-ZIF)composite precursors with the addition of PA and ferrocene.The combination of active species and hollow carbon structures endows Co_(2)P/Fe/NP–HCS electrocatalysts with prominent catalytic abilities for the ORR/OER.Co_(2)P/Fe/NP–HCSs show a positive half-wave potential(0.872 V)for the ORR while achieving a low overpotential(341 mV@10 mA cm^(−2))for the OER.Consequently,a Co_(2)P/Fe/NP–HCS-based Zn–air battery delivers high power density and desirable durability.This study provides a distinct synthetic strategy for preparing practical catalysts for energy conversion equipment.
